Finding the Third Proportional to 528,084 and 1,245,390

Step by Step Solution

1. Step 1: Write the proportion equation
   528,084 : 1,245,390 = 1,245,390 : x
2. Step 2: Convert to fraction form
   528,084/1,245,390 = 1,245,390/x
3. Step 3: Cross multiply
   528,084x = 1,245,390 × 1,245,390
4. Step 4: Simplify right side
   528,084x = 1,550,996,252,100
5. Step 5: Solve for x
   x = 1,550,996,252,100/528,084
6. Step 6: Final answer
   x = 2,937,025.65